A very special island

We find ourselves on a very special island, back in Antiquity.

There are only two types of people on this island.

A very special island

We find ourselves on a very special island, back in Antiquity.

There are only two types of people on this island.

• Philosophers: who always speak the truth

• Sophists: who always lie

​Zeno says: "At least one of use is a sophist."

Crito says nothing

Problem #1

​Zeno says: "We are both sophists."

Crito says nothing

​Zeno says: "We are both sophists."

Crito says nothing

​sophist

​philosopher

Problem #2

​Zeno says: "We are a different kind."

Crito says "We are the same kind."

​Zeno says: "We are a different kind."

Crito says "We are the same kind."

​philosopher

​sophist

Problem #3

​Zeno says: "Crito is a sophist."

Crito says "Zeno and I are philosophers."

Problem #4

​Zeno says: "Crito and I are both philosophers or both sophists."

Crito says "We are the same kind."